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针对纳米颗粒的产生提出了一项新技术,该技术基于大气压非平衡等离子体条件下挥发性物质的分解以及纳秒脉冲放电等离子体。大气压短脉冲放电等离子体具有许多突出特点,利用纳秒脉冲电源,采用大气压下等离子体射流的方式,对混有二茂铁的乙醇溶液进行了放电反应研究,成功制备了纳米铁颗粒。其结果表明,对于制备的纳米铁颗粒,采用气相样本其平均粒径为10～20 nm,采用液相样本其平均粒径为20～70 nm。
A new technique was proposed for the generation of nanoparticles based on the decomposition of volatile matter under atmospheric non-equilibrium plasma conditions and the nanosecond pulsed discharge plasma. Atmospheric pressure short pulse discharge plasma has many outstanding features. Using nanosecond pulse power supply, using plasma jet at atmospheric pressure, the discharge reaction of ethanol solution mixed with ferrocene was studied, successfully prepared nano-iron particles. The results show that for the prepared nano-iron particles, the average particle diameter of the gas phase sample is 10 to 20 nm, and the average particle size of the liquid phase sample is 20 to 70 nm.